CN217004513U

CN217004513U - Manual feeding valve for coal-fired power plant

Info

Publication number: CN217004513U
Application number: CN202220525013.0U
Authority: CN
Inventors: 温磊; 刘文静; 张丹丹
Original assignee: Inner Mongolia Shangdu Power Generation Co Ltd
Current assignee: Inner Mongolia Shangdu Power Generation Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-19
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a feeding manual valve for a coal-fired power plant, which comprises a feeding box, wherein a guide plate is arranged on the inner side of the top end of the feeding box, a movable plate is arranged at the bottom of the guide plate, an intercepting plate is connected to the inner side of the middle of the feeding box, a connecting rod is arranged in the middle of the intercepting plate, a second spring is arranged on the inner side of the connecting rod, the front end of the second spring is connected with an installation rod, the front end of the installation rod is fixedly connected with a handheld rod, a connecting convex strip is arranged on the peripheral side of the installation rod, and an installation block is connected to the outer side of the front end of the connecting convex strip. This coal fired power plant is with manual valve of feed, at the in-process that drops into the feeding case with coal-fired instruments such as through the conveyer belt, the coal-fired of whereabouts can cause the impact to the protrusion column structure of fly leaf middle part top, makes the fly leaf pressurized and takes place the rocking about of small range under the effect of first spring, improves the coal-fired speed that passes through the fly leaf to through the inside hole of fly leaf, be convenient for filter the coal-fired of great volume.

Description

Manual feeding valve for coal-fired power plant

Technical Field

The utility model relates to the technical field of coal-fired power plants, in particular to a feeding manual valve for a coal-fired power plant.

Background

In the working and power generating process of a coal-fired power plant, in order to avoid the interruption of coal-fired feeding caused by the influence of the normal feeding of coal-fired due to the failure of a circuit, a manual valve is required to be used for regulation, but the feeding manual valve for the coal-fired power plant in the current market still has the following problems:

1. the existing feeding manual valve for the coal-fired power plant is inconvenient for screening the fire coal, and the fire coal with larger volume is easy to be insufficiently combusted;

2. the conventional feeding manual valve for the coal-fired power plant is inconvenient for regulating the feeding speed of the coal-fired, and the practicability of the manual valve is low.

Aiming at the problems, the novel design is carried out on the basis of the original feeding manual valve for the coal-fired power plant.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a feeding manual valve for a coal-fired power plant, which aims to solve the problems that the feeding manual valve for the coal-fired power plant, which is provided in the background art and is common in the market at present, is inconvenient to screen the coal-fired, the large-size coal-fired is easy to cause insufficient combustion, the feeding speed of the coal-fired is inconvenient to regulate and control, and the practicability of the manual valve is low.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a coal fired power plant is with manual valve of feed, includes the feeding case, the top inboard of feeding case is provided with the stock guide, and the bottom of stock guide installs the fly leaf, the middle part inboard of feeding case is connected with the closure plate, and the middle part of closure plate is provided with the connecting rod, the second spring is installed to the inboard of connecting rod, and the front end of second spring is connected with the installation pole, the front end fixedly connected with of installation pole holds the pole, and installs the week side of pole and install the connection sand grip, the front end outside of connecting the sand grip is connected with the installation piece, and the support frame is all installed at both ends about the installation piece.

Preferably, the guide plate is fixedly connected with the feeding box to form an integrated structure, the guide plate is arranged in a left-right symmetrical mode relative to the central axis of the feeding box, and the longitudinal section of the guide plate is arranged in a triangular structure.

Preferably, the inside evenly distributed of fly leaf has hole column structure, and the middle part top of fly leaf is equidistant and is provided with protrusion column structure to the right-hand member of its protrusion column structure is the slope setting, the equal fixedly connected with fixed strip in both ends bottom around the fly leaf, and the inside of fixed strip runs through there is the guide bar, and first spring is all installed in both ends outside about the guide bar.

Preferably, the intercepting plate and the connecting rod are connected in a welding mode, the connecting rod and the feeding box are connected in a rotating mode, the positioning groove is formed in the front end of the connecting rod, and the longitudinal section of the positioning groove is arranged in a '+' shaped structure.

Preferably, the connection mode of the connection convex strip and the connection rod is a snap-fit sliding connection, the connection convex strip is arranged at equal angles on the peripheral side of the installation rod, and the connection convex strip is fixedly connected with the installation rod.

Preferably, the mounting block is connected with the support frame through a bolt, the mounting block is connected with the connecting convex strip through a clamping manner, and a groove with a cross-section in an 'x' shape structure is formed in the mounting block.

Compared with the prior art, the utility model has the beneficial effects that: the feeding manual valve for the coal-fired power plant,

1. by arranging the material guide plate, the movable plate and the guide rod, in the process of throwing the coal into the feeding box through tools such as a conveyor belt and the like, the falling coal can impact a convex structure above the middle part of the movable plate, so that the movable plate is pressed and swings left and right in a small range under the action of the first spring, the speed of the coal passing through the movable plate is improved, and the coal with larger volume can be screened conveniently through the inner holes of the movable plate;

2. through setting up the connecting rod, connect sand grip and installation piece, through backward extrusion handheld pole, drive the installation pole in the period and connect the sand grip rearward movement, after connection sand grip and installation piece break away from, can remove the spacing of installation pole, but manual rotation installation pole afterwards, make it drive connecting rod and closure plate through connecting the sand grip and take place to rotate, through the turned angle who adjusts the closure plate, be convenient for control coal-fired unloading speed, and through connecting sand grip and installation piece block again, can fix a position the installation pole, connecting rod and closure plate.

Drawings

FIG. 1 is a schematic view of the overall front view structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 4 is a schematic view of the connection structure of the movable plate and the fixed strip according to the present invention;

FIG. 5 is a schematic view of the overall structure of the installation rod and the connection rib of the present invention;

FIG. 6 is a schematic view of the connection structure of the mounting block and the support frame according to the present invention.

In the figure: 1. a feeding box; 2. a material guide plate; 3. a movable plate; 4. a fixing strip; 5. a guide bar; 6. a first spring; 7. a shutoff plate; 8. a connecting rod; 9. positioning a groove; 10. a second spring; 11. mounting a rod; 12. a hand-held wand; 13. connecting convex strips; 14. mounting blocks; 15. a support frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 3 and fig. 4, the present invention provides a technical solution: a feeding manual valve for a coal-fired power plant comprises a feeding box 1, wherein a material guide plate 2 is arranged on the inner side of the top end of the feeding box 1 for screening and selecting large-size fire coal, the material guide plate 2 is fixedly connected with the feeding box 1 to form an integrated structure, the material guide plate 2 is symmetrically arranged on the left and right of the central axis of the feeding box 1, the longitudinal section of the material guide plate 2 is in a triangular structure, a movable plate 3 is arranged at the bottom of the material guide plate 2, hole-shaped structures are uniformly distributed in the movable plate 3, a convex-shaped structure is arranged above the middle of the movable plate 3 at equal intervals, the right end of the convex-shaped structure is obliquely arranged, fixed strips 4 are fixedly connected to the bottoms of the front end and the rear end of the movable plate 3, guide rods 5 are slidably connected to the insides of the fixed strips 4, first springs 6 are arranged on the outer sides of the left end and the right end of the guide rods 5, and the movable plate 3 with the hole-shaped structures uniformly distributed inside are under the action of the movable plate 3, can sieve the inside fire coal of input feeding case 1, can select the great fire coal of volume to the fire coal of whereabouts can cause the impact to the protrusion column structure of fly leaf 3 middle part top, makes fly leaf 3 pressurized and takes place the left and right sides of small amplitude and rock under the effect of first spring 6, improves the speed that the fire coal passes through fly leaf 3.

Referring to fig. 1, 2, 5 and 6, in order to facilitate the control of the coal discharge speed, a cut-off plate 7 is connected to the inner side of the middle of the feeding box 1, a connecting rod 8 is disposed at the middle of the cut-off plate 7, the cut-off plate 7 is welded to the connecting rod 8, the connecting rod 8 is rotatably connected to the feeding box 1, a positioning groove 9 is formed in the front end of the connecting rod 8, the longitudinal section of the positioning groove 9 is in a "+" shape, a second spring 10 is mounted at the inner side of the connecting rod 8, a mounting rod 11 is connected to the front end of the second spring 10, a hand-held rod 12 is fixedly connected to the front end of the mounting rod 11, a connecting protrusion 13 is mounted on the circumferential side of the mounting rod 11, the connecting protrusion 13 is in a snap-on sliding connection with the connecting rod 8, and the connecting protrusion 13 is disposed at an equal angle on the circumferential side of the mounting rod 11, the connecting convex strip 13 is fixedly connected with the mounting rod 11, the mounting block 14 is connected to the outer side of the front end of the connecting convex strip 13, the mounting block 14 is connected with the supporting frame 15 through bolts, the mounting block 14 is connected with the connecting convex strip 13 through clamping, a groove with a cross-shaped longitudinal section is formed in the mounting block 14, the supporting frames 15 are mounted at the left end and the right end of the mounting block 14, the coal-fired blanking speed can be conveniently regulated and controlled by adjusting the rotation angle of the intercepting plate 7, and the angles of the mounting rod 11, the connecting rod 8 and the intercepting plate 7 can be positioned through clamping of the connecting convex strip 13 and the mounting block 14.

The working principle is as follows: when the feeding manual valve for the coal-fired power plant is used, firstly, the coal is conveyed into the feeding box 1 through conveying tools such as a conveying belt, in the coal blanking process, the coal fed into the feeding box 1 can be guided to the upper part of the movable plate 3 under the action of the material guide plate 2 with the triangular longitudinal section, the coal with larger volume in the coal can be screened and selected through the hole-shaped structures uniformly distributed in the movable plate 3, the falling coal can impact the convex-shaped structures above the middle part of the movable plate 3, the movable plate 3 is pressed and swings left and right in a small range under the action of the first spring 6, the speed of the coal passing through the movable plate 3 is improved, and the sliding stability of the movable plate 3 can be improved through the guide rods 5 penetrating through the fixed strips 4;

the installation rod 11 can drive the connecting convex strips 13 to move backwards by gripping the hand-held rod 12 and extruding backwards, when the connecting convex strips 13 are separated from the installation block 14, the limit of the installation rod 11 can be released, then the installation rod 11 can be rotated manually, the connection convex strips 13 can drive the connecting rod 8 and the cut-off plate 7 to rotate, and the blanking speed of the fire coal can be controlled conveniently by adjusting the rotation angle of the cut-off plate 7;

after the adjustment of the rotation angle of the cut-off plate 7 is completed, the mounting rod 11 can be released, so that the mounting rod drives the connecting convex strip 13 to move forward and return under the action of the second spring 10, and the mounting rod 11, the connecting rod 8 and the cut-off plate 7 can be positioned by re-clamping the connecting convex strip 13 with the mounting block 14 provided with the 'x' -shaped groove therein, which is the working process of the whole device, and the content which is not described in detail in the specification belongs to the prior art known by the technicians in the field.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal fired power plant is with manual valve of feed, includes feeding case (1), its characterized in that: the utility model discloses a portable electronic scale is characterized in that the top inboard of feeding box (1) is provided with stock guide (2), and the bottom of stock guide (2) installs fly leaf (3), the middle part inboard of feeding box (1) is connected with closure plate (7), and the middle part of closure plate (7) is provided with connecting rod (8), second spring (10) are installed to the inboard of connecting rod (8), and the front end of second spring (10) is connected with installation pole (11), the front end fixedly connected with of installation pole (11) holds pole (12), and installs the week side of installation pole (11) and install connection sand grip (13), the front end outside of connecting sand grip (13) is connected with installation piece (14), and support frame (15) are all installed at both ends about installation piece (14).

2. A coal fired power plant feed manual valve as defined in claim 1 wherein: the material guide plate (2) is fixedly connected with the feeding box (1) to form an integrated structure, the material guide plate (2) is arranged in a left-right symmetrical mode relative to the central axis of the feeding box (1), and the longitudinal section of the material guide plate (2) is arranged in a triangular structure.

3. A coal fired power plant feed manual valve as defined in claim 1 wherein: the inside evenly distributed of fly leaf (3) has hole column structure, and the middle part top of fly leaf (3) is equidistant and is provided with protrusion column structure to the right-hand member of its protrusion column structure is the slope setting, the equal fixedly connected with fixed strip (4) in both ends bottom around fly leaf (3), and the inside of fixed strip (4) runs through has guide bar (5), and first spring (6) are all installed in the both ends outside about guide bar (5).

4. A coal fired power plant feed manual valve as defined in claim 1 wherein: the shutoff plate (7) and the connecting rod (8) are connected in a welding mode, the connecting rod (8) and the feeding box (1) are connected in a rotating mode, the positioning groove (9) is formed in the inner portion of the front end of the connecting rod (8), and the longitudinal section of the positioning groove (9) is arranged in a '+' shaped structure.

5. A coal fired power plant feed manual valve as defined in claim 1 wherein: the connection mode of the connection convex strip (13) and the connection rod (8) is a clamping type sliding connection, the connection convex strip (13) is arranged on the peripheral side of the installation rod (11) at an equal angle, and the connection convex strip (13) is fixedly connected with the installation rod (11).

6. A coal fired power plant feed manual valve as defined in claim 1 wherein: the mounting block (14) is connected with the support frame (15) through bolts, the mounting block (14) is connected with the connecting convex strips (13) in a clamping manner, and grooves with star-shaped longitudinal sections are formed in the mounting block (14).